CTET Paper-II Science: Questions 127 - 130 of 207
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Question number: 127
Appeared in Year: 2011
Green plants appear to release oxygen instead of carbon dioxide into the atmosphere during the daytime because (June)
Green plants respire only during the nighttime
Green plants respire during the daytime but are involved in photosynthesis during the nighttime
The rate of photosynthesis is higher than the rate of respiration during the daytime
Green plants do not respire during the nighttime
Question number: 128
Appeared in Year: 2013
When we add aluminum foil to freshly prepared sodium hydroxide solution a gas is produced. Which of the following correctly states the property of this gas? (July)
Colorless and odorless gas which extinguishes a burning match stick.
Brown colored pungent smelling gas.
Colorless and odorless gas which produces a ‘pop’ sound when a burning match stick is brought near it.
Colorless and odorless gas which promotes burning of a candle.
Question number: 129
Question number: 130
Appeared in Year: 2012
Given below are a few chemical processes:
1. Rusting of iron
2. Burning of a candle
Which two of these represent slow combustion? (Jan)
4 and 1
2 and 3
1 and 3
2 and 4